[問題] 請教文華高中100年教甄試題
想請教文華高中100年第一題
題目如下
http://i.imgur.com/bgxO43c.jpg
![](https://i.imgur.com/bgxO43c.jpg)
![](https://i.imgur.com/43nCsHY.jpg)
想說物體在水面簡諧振盪
應該會能量守恆才對呀
用能量守恆算出來的答案是錯的....
麻煩大家指教了QQ
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